Chapter 3 - Applications; Application 1 - Cooling Tower Fan - Passive Input And Sleep Mode - Siemens BT300 Application Manual

Chapter 3 - Applications

Application 1 - Cooling Tower Fan - Passive Input and
Sleep Mode
Sequence of Operation
1. Fan Application.
2. Run/Stop command comes from Digital Input 1.
3. Automatic Reset is active.
4. A PID loop is used to control the speed of the motor based on water temperature.
5. The PID loop feedback is from Analog Input 3 (passive temperature sensor).
6. The PID loop setpoint is adjustable from field bus (deg F).
7. Sleep mode is activated when appropriate.
8. Flying Start feature is active.
9. Motor Operating activates Digital Output 1 (default).
10. Fault activates Digital Output 2 (default).
Parameter Changes
Part. No. Value
P6.5.1 OK
Yes
M1
P1.16 Enable
P1.17 Activate
P1.17 Yes
P3.2.4 Flying Start
P3.5.2.13 AnIn SlotX.1
Siemens Industry, Inc.
Parameter Function
Reset Factory Defaults
Startup Wizard
Quick Setup
Automatic Reset
PID Mini-Wizard
Sleep Function
Start Function
AI3 Signal Sel
Function Selection
Enter appropriate data
Enter appropriate motor data
Enter appropriate data
Enter appropriate data
Flying Start enabled
Option board required
(Slot) X = D or E
Document Reference
(DPD01149)
Sect. 2.2.6.1
Sect. 1.1
Sect. 3.3
Sect. 3.5.12
Sect. 1.2
Sect. 3.5.14.2
Sect. 3.5.4
Sect. 3.5.1.2 and 3.5.7.1
8